diff options
Diffstat (limited to 'drivers/net/wireless/microchip/wilc1000/spi.c')
| -rw-r--r-- | drivers/net/wireless/microchip/wilc1000/spi.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/net/wireless/microchip/wilc1000/spi.c b/drivers/net/wireless/microchip/wilc1000/spi.c index 8b180c29d682..dd481dc0b5ce 100644 --- a/drivers/net/wireless/microchip/wilc1000/spi.c +++ b/drivers/net/wireless/microchip/wilc1000/spi.c @@ -39,6 +39,7 @@ MODULE_PARM_DESC(enable_crc16, #define WILC_SPI_RSP_HDR_EXTRA_DATA 8 struct wilc_spi { + bool isinit; /* true if SPI protocol has been configured */ bool probing_crc; /* true if we're probing chip's CRC config */ bool crc7_enabled; /* true if crc7 is currently enabled */ bool crc16_enabled; /* true if crc16 is currently enabled */ @@ -908,15 +909,15 @@ static int wilc_spi_init(struct wilc *wilc, bool resume) struct wilc_spi *spi_priv = wilc->bus_data; u32 reg; u32 chipid; - static int isinit; int ret, i; - if (isinit) { + if (spi_priv->isinit) { + /* Confirm we can read chipid register without error: */ ret = wilc_spi_read_reg(wilc, WILC_CHIPID, &chipid); - if (ret) - dev_err(&spi->dev, "Fail cmd read chip id...\n"); + if (ret == 0) + return 0; - return ret; + dev_err(&spi->dev, "Fail cmd read chip id...\n"); } /* @@ -974,7 +975,7 @@ static int wilc_spi_init(struct wilc *wilc, bool resume) spi_priv->probing_crc = false; /* - * make sure can read back chip id correctly + * make sure can read chip id without protocol error */ ret = wilc_spi_read_reg(wilc, WILC_CHIPID, &chipid); if (ret) { @@ -982,7 +983,7 @@ static int wilc_spi_init(struct wilc *wilc, bool resume) return ret; } - isinit = 1; + spi_priv->isinit = true; return 0; } |